Function findMaxSequentialNumber

src/node/services/workspaceService.ts:720–735

* Find the highest sequential number among items that match `prefix trailingSuffix`. * Returns 0 when no items match.

(items: string[], prefix: string, trailingSuffix = "")

 * Returns 0 when no items match.
 */
function findMaxSequentialNumber(items: string[], prefix: string, trailingSuffix = ""): number {
  let max = 0;
  for (const item of items) {
    if (!item.startsWith(prefix)) continue;
    if (trailingSuffix && !item.endsWith(trailingSuffix)) continue;

    const numberStr = trailingSuffix
      ? item.slice(prefix.length, -trailingSuffix.length)
      : item.slice(prefix.length);
    if (!/^\d+$/.test(numberStr)) continue;

    const n = Number(numberStr);
    if (n > max) max = n;
  }
  return max;
}

function deriveForkFamilyBaseName(metadata: { name: string; forkFamilyBaseName?: string }): string {
  if (metadata.forkFamilyBaseName) {